CVE-2024-6798 in DL Verification Plugin
Summary
by MITRE • 05/16/2025
The DL Verification WordPress plugin through 1.2 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
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Analysis
by VulDB Data Team • 05/17/2025
The vulnerability identified as CVE-2024-6798 affects the DL Verification WordPress plugin version 1.2 and earlier, presenting a significant security risk through stored cross-site scripting flaws. This issue specifically targets high-privilege users such as administrators who possess the capability to modify plugin settings, creating a vector for persistent malicious code execution within the WordPress environment. The vulnerability stems from inadequate input sanitization and output escaping mechanisms within the plugin's settings handling functionality, which fails to properly validate and sanitize user-supplied data before storing it in the database.
The technical flaw manifests when administrators or other privileged users interact with the plugin's administrative interface to configure settings that contain potentially malicious script content. Despite WordPress's built-in protections such as the unfiltered_html capability restriction commonly enforced in multisite configurations, this vulnerability allows attackers to bypass these security measures through the plugin's insufficient sanitization processes. The stored XSS vulnerability occurs because the plugin does not properly escape output when rendering settings values back to the user interface, enabling malicious scripts to execute in the context of other users' browsers when they access the affected administrative pages.
The operational impact of CVE-2024-6798 extends beyond simple script injection, as it can enable attackers to perform various malicious activities including session hijacking, credential theft, and privilege escalation within the WordPress environment. In a multisite setup where the unfiltered_html capability is typically restricted, this vulnerability becomes particularly dangerous as it undermines the security model designed to protect against cross-site scripting attacks. The vulnerability affects the integrity and confidentiality of the WordPress installation, potentially allowing attackers to gain unauthorized access to sensitive administrative functions and user data.
Security mitigations for CVE-2024-6798 should prioritize immediate plugin updates to versions that address the sanitization and escaping deficiencies. System administrators should implement strict input validation and output escaping mechanisms for all user-supplied data within the plugin's settings pages. The principle of least privilege should be enforced by limiting administrative access to only those users who require it for legitimate purposes, reducing the attack surface for potential exploitation. Additionally, organizations should consider implementing web application firewalls and content security policies to provide additional layers of protection against XSS attacks. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and maps to ATT&CK technique T1059.001 for command and scripting interpreter usage in malicious script execution scenarios. Regular security auditing and penetration testing should be conducted to identify similar vulnerabilities in other WordPress plugins and the overall application stack.